Spring draft-tug



O BRUNGK. SPRING 'DRAFT THG.

(N0 MQGL) Patented July 17, 1883.

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Wil-M5555; v Wm 25ML, /i J 'UNITED STATES PATENT OEEICE.

OTTO BRUNCK, SAN FRANCISCO, CALFORNI.

SPRING DRAFT-Tue.

SPECIFICATION forming' part of Letters Patent No. 281,36, dated July 1'?, 188?.

Application tiled December' 2l, 185?. (No model.)

trated in the accompanying drawing, in which e is represented a longitudinal section of my invention with the coils expanded.

A. represents a case or containing-cylinder in which is placed the spiral draft-spring B.

The coils of the spring are gradually enlarged `from the ends thereofto the center, as shown.

The inner ends of the tng-irons C C are eonstrncted identically in the same manner, and are provided with collars D D, which are so arranged in the spring as to take np several of the end coils, E, and these end coils are held between the outer faces of the collars and pins F, which latter pass through the draftirons. By this means a rm hold is had npon held within the takeup ofthe coils.

the ends of the coiled spring, and the tugirons cannot be easily withdrawn therefrom, the collars of said tug-irons being securely The tugiron C is provided with a curved loop, G, which is pivoted to the arms ofthe iron so as to loosely play up or down, while the iron C,I

:it the opposite end, is provided with a ring,

as shown, by which connection is made with the tug or trace of the harness.

xHaving thus described my invention, what I claim, and desire to secure by Letters Patent, 1s-

nIn a spring draft-tug, the combination of 4o the case A, tapered spiral spring B, and tug irons C C', having collars D D and pins F F, the end coils, E E, of said spring being confined between said pins and the collars, as and for the purpose described.

In testimonlT thatl claim the foregoing I have hereunto set my hand and seal this 13th dayT of November, 1882.

OTTO BRUNCK. [n s] Vitnesses: i

C. W'. 'M SMITH, CHAs. E. KELLY. 

